From 6c547f264077ffeb56390f42ed2a07749dd619b2 Mon Sep 17 00:00:00 2001 From: Alexander Aring Date: Tue, 30 Nov 2021 14:47:18 -0500 Subject: fs: dlm: memory cache for midcomms hotpath This patch will introduce a kmem cache for allocating message handles which are needed for midcomms layer to take track of lowcomms messages. Signed-off-by: Alexander Aring Signed-off-by: David Teigland --- fs/dlm/memory.c | 31 ++++++++++++++++++++++++++----- 1 file changed, 26 insertions(+), 5 deletions(-) (limited to 'fs/dlm/memory.c') diff --git a/fs/dlm/memory.c b/fs/dlm/memory.c index 5918f4d39586..8996c6453ad5 100644 --- a/fs/dlm/memory.c +++ b/fs/dlm/memory.c @@ -10,32 +10,44 @@ ******************************************************************************/ #include "dlm_internal.h" +#include "midcomms.h" #include "config.h" #include "memory.h" +static struct kmem_cache *mhandle_cache; static struct kmem_cache *lkb_cache; static struct kmem_cache *rsb_cache; int __init dlm_memory_init(void) { + mhandle_cache = dlm_midcomms_cache_create(); + if (!mhandle_cache) + goto out; + lkb_cache = kmem_cache_create("dlm_lkb", sizeof(struct dlm_lkb), __alignof__(struct dlm_lkb), 0, NULL); if (!lkb_cache) - return -ENOMEM; + goto lkb; rsb_cache = kmem_cache_create("dlm_rsb", sizeof(struct dlm_rsb), __alignof__(struct dlm_rsb), 0, NULL); - if (!rsb_cache) { - kmem_cache_destroy(lkb_cache); - return -ENOMEM; - } + if (!rsb_cache) + goto rsb; return 0; + +rsb: + kmem_cache_destroy(lkb_cache); +lkb: + kmem_cache_destroy(mhandle_cache); +out: + return -ENOMEM; } void dlm_memory_exit(void) { + kmem_cache_destroy(mhandle_cache); kmem_cache_destroy(lkb_cache); kmem_cache_destroy(rsb_cache); } @@ -89,3 +101,12 @@ void dlm_free_lkb(struct dlm_lkb *lkb) kmem_cache_free(lkb_cache, lkb); } +struct dlm_mhandle *dlm_allocate_mhandle(void) +{ + return kmem_cache_alloc(mhandle_cache, GFP_NOFS); +} + +void dlm_free_mhandle(struct dlm_mhandle *mhandle) +{ + kmem_cache_free(mhandle_cache, mhandle); +} -- cgit v1.2.3